Turning and milling machine for machining civil nuclear power container

Abstract

The turning and milling machine for machining civil nuclear power container includes a bridge frame connected to a drop beam with adjustable central support rod, a turning and milling power set, an elevating motor connected to an elevating lead screw, a horizontal rotating motor, longitudinal lead screw inside a square chest, a longitudinal motor, a transverse ram on a slide carriage, a slide board on the ram, a milling head fixed onto the slide board with inside motor, a transverse motor set on the top of the milling head and connected via belt to a belt wheel on the lead screw, a face milling cutter, and a drilling bit on the milling head.

Description

Technical field [0001] The invention relates to a turning and milling machine tool for a civil nuclear power main vessel, in particular to a turning and milling machine tool for machining inside a civil nuclear power main vessel, and belongs to the technical field of turning and milling machine tools for a civil nuclear power main vessel. Background technique [0002] At present, the processing of the core support block in the known civilian nuclear power main vessel is the core technology of the overall processing of the nuclear power main vessel. The part that needs to be processed is at the bottom of the main vessel cylinder, with a distance of more than 8000mm from the upper end of the cylinder, and 300,000 KW , 600,000 KW, and 1,000,000 KW cylinders have different sizes from the nuclear core support block to the upper end surface of the cylinder, and have different structural forms, including straight groove type and ring groove type, regardless of the existing vertical ...

AI Technical Summary

Problems solved by technology

[0002] At present, the processing of the core support block in the known civilian nuclear power main vessel is the core technology of the overall processing of the nuclear power main vessel. The part that needs to be processed is at the bottom of the main vessel cylinder, with a distance of more than 8000mm from the upper end of the cylinder, and 300,000 KW , 600,000 KW, and 1,000,000 KW cylinders have different sizes from the nuclear core support block to the upper end surface of the cylinder, and have different structural forms, including straight groove type and ring groove type, regardless of the existing vertical lathe stroke or boring machine The stroke of the main shaft cannot meet the processing requirements. In the processing of the main container of Pakistan’s 300,000 KW nuclear power plant that has been produced, a small boring machine is placed in the main container for processing, and the upper and lower parts are fixed by hanging steel wires vertically. center, the position of the machine tool needs to be moved four times, the machining accuracy is low, the reliability of quality assurance is poor, and a set of machine tool support platforms cannot meet the processing needs of 300,000 KW, 600,000 KW, and 1 million KW nuclear power main vessels at the same time

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